Nereus

 is a Spire recruit in Tyranny.

Background
A merchant with a large collection of poisons - many of them illegal. He is a creepy hire, at best, and downring unbearable at his worst. In fact, his first action against you as his employer is to blow a handful of dust into your face, to prove just how easy it would be to poison you. Creeepy.

Behind the scenes

 * Nereus was originally a Prison recruit.